Question

Am o necunoscuta!
[(910-23×35):15]+e:80=487

Answer 1

[(910-23x35):15]+e:80=487
[( 910-805):15]+e:80=487
 (105:15)+e:80=487
  7+e:80=487
 487-7=e:80
 480=e:80
e=480:80
e=6

Answer 2

[(910-805):15]e:80=487
(105:15)+e:80=487
7+e:80=487
7+e=487×80
7+e=38.960
e=38.960-7
e=38.953